Chair construction



Patented July 5, 1938 PATENT OFFICE CHAIR CONSTRUCTION Paul Fleischer, Cleveland, Ohio, assignor to Sun Radiator Cover, jInc., Cleveland, Ohio, a corporation of Ohio Application September 10, 1937, Serial No. 163,215

2 Claims.

This invention relates to chairs and has for its principal object to provide a cheap, although sturdy, chair back construction. More specifically, the invention relates to a novel reinforcing mechanism for a sheet metal chair back whereby the same may be made of relatively light gauge metal and at the same time have sufflcient strength to avoid deformation at the points of attachment where such points are intermediate the top and bottom of the chair back.

Other and more limited objects will be in part apparent and in part pointed out hereinafter in connection with the accompanying drawing wherein Fig. l is a perspective view of a chair embodying the invention; Fig. 2 is an enlarged side elevation of the chair back; Fig. 3 is a fragmentary rear elevation of the back; Fig. 4 is a along the floorand uprights I3 at each side at.

the front extending upwardly and terminating in rearwardly directed arm portions l4. Attached to the portions l3 at a suitable height is a chair seat l5 having a downwardly extending portion IS. The seat I5 and the portion l6 may be of stamped sheet metal construction having flanges l1 and I 8 respectively, the flanges [8 being secured to the portions [3 as by bolts or rivets l9. Secured to the rear of the seat pore tion 15 is a sheet metal back 20 which preferably is of one piece construction and provided with side flanges 2|, a rearwardly directed bent-over top portion or flange 22 and a bottom flange 23 adapted to be secured by rivets, welding or otherwise, to the flange '24 at the, rear of the seat IS. The back 20 is composed of a central web 25 and the above mentioned flanges. The side flanges 2| are provided with inwardly embossed ribs 26 defining grooves on the outer surfaces also indicated by the numeral 26. The ribs 26 extend longitudinally of the flanges 2| through. a major portion of the length thereof and are widened centrally as best seen in Figs. 2 and 4 to receive a bearing element 21. The bearing elements 2'! are preferably welded to the bottom and adjacent side walls of the groove 26 formed within the. ribs and an opening 28 extends through each bearing element 21 and the bottom of each rib. Suitable bolts or rivets 29 extend through the rear ends of the arms {4, the bearing elements 21 and the ribs of the flanges 2| and thereby form a support'for the back and the rear portion of the seat. The bearing elements II are elongated, as shown, for the purpose of distributing the pressure exerted upon the ribs bythe bolts 29 over a suflicient area to prevent distortion of the ribs or of the side flanges.

From the foregoing, it will be evident that I have provided a reinforcing .construction for chairs which is well adapted for its intended purpose and while I have shown and described the present preferred embodiment, I wish it understood that Iam not limited to details of the disclosure except as defined in the appended claims.

Having thus described my invention, what I claim is:

I 1. In a chair, a back having metal side flanges,

each of said flanges being provided with an inwardly embossed longitudinally extending rib providing a groove, bearing elements seatedin' the said grooves, arms extending across the said flanges, and a bolt extending through the rear end of each-arm and through the bearing element and the rib' within which said element is seated.

2. In a chair, a back having metal side flanges, each of said flanges having an inwardly embossed longitudinally extending rib forming a groove having a widened portion intermediate the ends thereof, an elongated bearing element seated in and conforming to the widened portion I of each groove, arms having their rear ends extending across the grooves formed in said flanges and across the bearing elements therein, and securing means extending through the rear end of each arm, through the bearing element adjacent thereto and through the rib forming the groove wherein .the bearing element is seated. 5 PAUL FLEISCHER. 

